Question about 1999 Volvo S80
First, Is there actually coolant in the over flow tank?
If the bottle is full the coolant level sensor may be bad. The sensor pulls out the bottom of the overflow reservior.
If the bottle gets low overnight there is a leak. Check the radiator side tanks for leaks. You need to look from underneath the car at the joint where the radiator meets the black tanks on the left and right sides.
You also need to look from underneath for most of the other hoses on the car, the car is turbo most likely and there are hoses that go to and from the turbos, into the cabin, and to and from the engine.
Leaks are hard to find from just looking from the top of the engine.
Hope this helps.
Posted on Feb 23, 2009
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Posted on Jan 02, 2017
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